U.S. Route 72 (US 72) is a significant east–west highway stretching across the southeastern United States, primarily serving Tennessee, Mississippi, and Alabama. It begins in the city of Memphis, Tennessee, and travels eastward through northern Mississippi and Alabama, eventually reaching its eastern terminus in Chattanooga, Tennessee. Along the way, it closely follows key geographic features like the Tennessee River and often parallels or overlaps with major rail corridors, making it a vital route historically and economically.
In Alabama, US 72 passes through several important cities, including Florence, Athens, and Huntsville, one of the region’s fastest-growing metropolitan areas. In Huntsville, the route becomes a major arterial road known locally for its commercial and defense-related industries. This portion of the highway also includes scenic stretches, especially through the Appalachian foothills and across the Tennessee River. Many sections of the route have been upgraded to expressway or four-lane divided highway standards to support modern traffic demands.
US 72 holds historical significance as well, running parallel to parts of the Trail of Tears and serving as a key corridor during westward expansion and Civil War troop movements. Today, it remains a vital transportation link connecting smaller towns to major urban centers and interstate routes such as I-65 and I-24, continuing to play a role in regional development and travel.